I have a situation where 20 laptops in our environment couldn't upgrade to Windows 11 24H2 due to an installation error (0xc1900201). After some research, I found a Microsoft support article that led me to take some steps involving the System Reserved Partition. I ended up deleting some font files to make space, but now, when users boot their laptops, they encounter a blank blue screen. They can access their laptops by entering the BitLocker key, but I'd like to know if there's a way to restore functionality. I attempted to replace the fonts folder but could only get half of the fonts back. Is there another folder I could delete to free up space, or what specific fonts does BitLocker require to show the key entry screen?
2 Answers
Why not try copying the original fonts folder from another system? It should fit within the same space requirements on the other PCs, right?
You might need to manually increase the partition sizes. Doing that could help avoid further issues down the line.
I actually tried that, but the fonts folder from another system or the installer ISO is still the same size—13 MB. The drive only has about 15 KB left of space, so it's a bit tricky.